crossed knee-jerk

例句：

1. 1. The child's crossedknee-jerk reflex was sostrong that it prevented him from standing upright.
   孩子的交叉腿本能反应太强烈了，以至于他无法站立。
2. 2. The scientist observedthe animal's crossed knee-jerk reflex during a study of itsnervous system.
   科学家在研究动物神经系统时观察到了动物的交叉腿本能反应。
3. 3. Thepatient's crossed knee-jerkreflex was an indication of a severeinjury to his leg.
   患者的交叉腿本能反应严重地表明了他的腿部受到了严重的伤害。